Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Lead C# Developer .Net Core - Fintech

£150k per annum

Lead C# Developer / Backend Software Engineer (C# .Net) Newcastle onsite to £150k

Do you have expertise with backend C# combined with strong technical leadership skills?

You could be joining a well-funded Fintech scale-up that is establishing a technical centre of excellence in the North East.

As a Lead C# Developer / Backend Software Engineer you'll design and implement the logic behind core applications, build APIs and microservices that handle data processing, business rules and third-party integrations and oversee the configuration and upkeep of secure, reliable server environments.

You'll work closely with internal teams and customers to gather detailed requirements through meetings and workshops and help shape the product vision and roadmap by offering technical insight and feasibility guidance, remaining hands‑on with architecture and design.

You will be a technical leader, instilling best practices, conducting code reviews, mentoring and collaboratively problem solving to help your team remove any blockers and delivery high quality software.

Location

You’ll join colleagues in brand new Central Newcastle offices on a full-time basis (Monday to Friday), working hours 0900-1800 with some flexibility. The offices are well equipped and offer fantastic views across the City and the local countryside, many employees walk or cycle in (onsite showers available!).

About you

  • You have achieved a minimum 2.1 BSc in Computer Science or similar technical discipline from a top tier / Russel Group university, backed by A's at A-level
  • You have strong technical leadership skills
  • You have expertise with modern C# .Net Core, Python skills would also be of benefit (will also consider other OO languages e.g. C++, Java)
  • You have a strong knowledge of modern software engineering best practices and have experience across the full software development lifecycle
  • You're a technologist who enjoys collaborating and problem solving, working on complex, distributed systems
  • You have a thorough understanding of Computer Science fundamentals such as OOP, Data Structures, Design Patterns, Algorithms
  • You're excited to join a scaling company in a role that you can shape and influence

What's in it for you

As a Lead C# Developer / Backend Software Engineer you will receive a competitive package:

  • Salary to £150k + Bonus
  • 25 days holiday
  • Social team atmosphere with a range of events and early finish for drinks on Fridays

Apply now to find out more about this Lead C# Developer / Backend Software Engineer (C# .Net Core) opportunity.

At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

#J-18808-Ljbffr
Vacancy posted 2 days ago
Similar jobs that could be interesting for youBased on the Lead C# Developer .Net Core - Fintech in Newcastle upon Tyne vacancy
  • £55k - £72k per annumEstimated
     ...in the UK by GPTW  We’re a core values driven company, we hire...  ...are seeking an experienced Tech Lead to join our Digital Data & Cloud...  ...private sector. Designing, developing, testing, and maintaining cloud...  ...Frontend (Angular) Backend (.Net, C#) NFR / Non-Functional requirement... 
    .Net
    Long-term contract
    Full-time
    Remote
    Flexible hours

    Version 1

    Newcastle upon Tyne
    3 days ago
  • £80k - £105k per annumEstimated
     ...educators and institutions to develop learning integrity solutions that...  ...Engineering Manager to lead and maintain products within the...  ...choice, flexibility, and a safety net for life’s challenges. You’ll also...  ...heartbeat of Turnitin—it is the core of our products, the way we... 
    .Net
    Full-time
    Remote
    Flexible hours

    Turnitin, LLC

    Newcastle upon Tyne
    9 days ago
  • £69k - £88k per annumEstimated
     ...has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies. Overview... 
    Suggested
    On-site
    Night shift

    Speechify

    Newcastle upon Tyne
    16 days ago
  • £49k - £56k per annum

    Company: HARVEY NASH PLC Job Type: Permanent Salary: £49000.00 - £56000.00
    .Net
    Permanent

    HARVEY NASH PLC

    Newcastle upon Tyne
    a month ago
  • £45k - £85k per annum

     ...An employer is seeking a talented .NET Developer to join their team, contributing to a global phenomenon in the online travel sector. This...  ...oriented development principles Sound knowledge of .NET, .NET Core, C# and Azure SQL Ability to work across different levels of the... 
    .Net
    Full-time

    Haystack

    Newcastle upon Tyne
    6 days ago
  • £43k - £56k per annumEstimated
     ...Senior Project Managers and Technical Leads to keep projects safe, on track and...  ...a great opportunity to build your core project management and PMO skills, develop confidence, and progress towards a Senior...  ...of sustainability, future-ready and net zero ambitions across projects.... 
    .Net
    Full-time

    WSP

    Newcastle upon Tyne
    2 days ago
  • £26k - £34k per annumEstimated
     ...or 3 Additional Requirements Essential Ability to work core hours Flexibility for cover Desirable ~ Basic IT skills...  ...Website: Contact Practice Manager, Patrick Griffin, ****@*****.***.net, (***) ***-**** Prospect Medical Group's privacy notice.... 
    .Net
    Long-term contract
    Permanent
    Full-time
    Rotating shifts

    Prospect Medical Group

    Newcastle upon Tyne
    2 days ago
  • £67.33k per annum

     ...the rheumatology speciality and a desire to develop further knowledge and skills in the...  ...possible in this post In line with the Trusts core value of placing patients at the heart of everything...  ..., Louise Scorfield, ****@*****.***.net Closing date: 27 October 2026 Privacy... 
    .Net
    Full-time
    Fixed-term contract
    Visa sponsorship
    Skilled worker visa
    Immediate start
    Flexible hours
    Afternoon shift

    The Newcastle upon Tyne Hospitals NHS Foundation Trust

    Newcastle upon Tyne
    2 days ago
  • £75k - £98k per annumEstimated
     ...flexible pipe systems are industry leading. Our global engineering team...  ...of a global business whilst developing your engineering skillset as...  ...working patterns: One of our core values as a business is...  ...medical care options Safety net of life insurance and disability... 
    .Net
    On-site
    Flexible hours

    Baker Hughes

    Newcastle upon Tyne
    more than 2 months ago
  •  ...job We are seeking an experienced Practice Nurse who will fulfil core responsibilities of the role such as: Long Term Condition...  .... Contact Practice Manager: Christine Ramsey, ****@*****.***.net, (***) ***-**** Closing date: 31 October 2026 Salary: Depending... 
    .Net
    Long-term contract
    Part-time
    Fixed-term contract
    Flexible hours
    2 days/week

    Fenham Hall Medical Group

    Newcastle upon Tyne
    6 days ago
  • £44k - £57k per annumEstimated
     ...educators and institutions to develop learning integrity solutions that...  ...product requirements and lead implementation and rollout....  ...choice, flexibility, and a safety net for life’s challenges. You’ll also...  ...heartbeat of Turnitin—it is the core of our products, the way we treat... 
    .Net
    Full-time
    Remote

    Turnitin, LLC

    Newcastle upon Tyne
    6 days ago
  • £53k - £70k per annumEstimated
     ...end-to-end digital services. Atos designs, develops, and operates critical digital...  ...across 54 countries, Atos helps modernize core IT systems, accelerate cloud and data transformation...  ...dedicated mailbox:  ****@*****.***.net or directly with the responsible... 
    .Net
    Hybrid working
    Newcastle upon Tyne
    4 days ago
  • £52k - £67k per annumEstimated
     ...them adapt and thrive. By focusing on the core needs of efficiency, productivity, growth,...  ...Join MHR as a Principal Software Engineer, leading complex engineering challenges that shape our...  ...with Microsoft technologies such as .NET and Azure, you’ll apply modern programming... 
    .Net
    Long-term contract
    Full-time

    MHR

    Newcastle upon Tyne
    19 days ago
  • £30k - £39k per annumEstimated
     ...performance, procurement and supply chain, net zero and digital solutions. We...  ...where Document Control is core to the delivery and operation of assets. We lead the Document Control process at organisational...  ...defining CDE requirements, developing naming conventions, and supporting... 
    .Net
    Full-time
    No agency
    Flexible hours

    Turner & Townsend

    Newcastle upon Tyne
    7 days ago
  • £31k - £41k per annumEstimated
     ...where you will be part of our market-leading Transmission & Distribution (T&D)...  ...deliver high-voltage infrastructure and net-zero energy solutions. Your core responsibilities will include:...  ...environment that attracts, supports, and develops world-class talent is a crucial key... 
    .Net
    Long-term contract
    Permanent
    Full-time
    On-site
    Immediate start

    Stantec

    Newcastle upon Tyne
    26 days ago
  • £57k - £75k per annumEstimated
     ...digital services. Atos designs, develops, and operates critical digital...  ...countries, Atos helps modernize core IT systems, accelerate cloud...  ...Talend, Cloudera, Qlik, and other leading data technologies. We work with...  ...:  ****@*****.***.net or directly with the... 
    .Net
    Remote
    Newcastle upon Tyne
    4 days ago
  • £39.96k - £48.12k per annum

     ...and MIST caseloads but may also develop their experiences in other...  ...community health services from our leading facilities, including the Queen...  ...everything we do - they are the core of who we are. Our five values...  ...Michelle Newton, ****@*****.***.net, (***) ***-**** Gateshead Health... 
    .Net
    Permanent
    Full-time
    Visa sponsorship
    Skilled worker visa

    Gateshead Health NHS Foundation Trust

    Gateshead, Tyne and Wear
    7 days ago
  • £76k - £99k per annumEstimated
     ...educators and institutions to develop learning integrity solutions that...  ...(ABX) Manager to own and lead the global ABX strategy, driving...  ...choice, flexibility, and a safety net for life’s challenges. You’ll also...  ...of Turnitin—it is the core of our products, the way we treat... 
    .Net
    Full-time
    Remote

    Turnitin, LLC

    Newcastle upon Tyne
    2 days ago
  • £57k - £73k per annumEstimated
     ...Lead Software Engineer  We work with some of the UK’s biggest companies and government departments to provide a pragmatic approach to...  ...tough software problems. You’ll have the opportunity to further develop your career mentoring colleagues, advising our clients, and taking... 
    Full-time

    scottlogic

    Newcastle upon Tyne
    a month ago
  • £113.57k - £150.57k per annum

     ...Pearson via email at ****@*****.***.net. Please read attached Job Description and...  ...to the research programme or further developments and collaborations will be actively encouraged...  ...Flexibility: In line with the Trusts core value of placing patients at the heart of... 
    .Net
    Part-time
    Traineeship
    Visa sponsorship
    Skilled worker visa
    Immediate start
    Flexible hours
    Rotating shifts
    Afternoon shift

    The Newcastle upon Tyne Hospitals NHS Foundation Trust

    Newcastle upon Tyne
    13 days ago
  • £42k - £55k per annumEstimated
     ...end-to-end digital services. Atos designs, develops, and operates critical digital...  ...across 54 countries, Atos helps modernize core IT systems, accelerate cloud and data transformation...  ...dedicated mailbox:  ****@*****.***.net Here at Atos, diversity and inclusion... 
    .Net
    Hybrid working
    3 days/week
    Newcastle upon Tyne
    19 days ago
  • £66k - £86k per annumEstimated
     ...Wellbeing in the UK by GPTW  We’re a core values driven company, we hire people who...  ...We are seeking an experienced Tech Lead to join our Digital Data & Cloud Practice....  ...public and private sector. Designing, developing, testing, and maintaining cloud-based software... 
    Long-term contract
    Full-time
    Remote
    Flexible hours

    Version 1

    Newcastle upon Tyne
    6 days ago
  • £40k - £53k per annumEstimated
     ...foster strong partnerships with leading technology giants including...  ...in the UK by GPTW We’re a core values driven company, we hire...  ...accounts, but where appropriate in net new logo accounts, you will also lead sales opportunities developed both directly through our Commercial... 
    .Net
    Full-time
    Flexible hours

    Version 1

    Newcastle upon Tyne
    29 days ago
  • £60k - £77k per annumEstimated
     ...Workplace for Wellbeing in the UK by GPTW   We’re a core values driven company, we hire people who share our...  ...This role is for an experienced AI Technical Lead. The role requires experience designing, developing, and delivering AI solutions for large-scale organisations... 
    Full-time
    Remote
    Flexible hours

    Version 1

    Newcastle upon Tyne
    21 days ago
  • £28.39k - £31.16k per annum

     ...(***) ***-**** e-mail: ****@*****.***.net Main duties of the job The job will include...  ...and community health services from our leading facilities, including the Queen Elizabeth...  ...runs through everything we do - they are the core of who we are. Our five values can easily... 
    .Net
    Permanent
    Full-time
    Part-time
    Visa sponsorship
    Skilled worker visa
    On-site

    Gateshead Health NHS Foundation Trust

    Gateshead, Tyne and Wear
    8 days ago
  •  ...to join an innovative and industry-leading Transmission & Distribution team? Join us and develop your skills on transformational...  ...us in the run up to achieving 2030 net zero targets. New overhead lines,...  ...At AECOM, you'll enjoy a range of core and personalised benefits designed... 
    .Net
    Long-term contract
    Full-time
    Hybrid working
    On-site
    Remote
    Flexible hours
    Shift work

    AECOM

    Newcastle upon Tyne
    15 days ago
  • £36k - £49k per annumEstimated
     ...where you will be part of a market-leading Waste & Generation team within...  ...support. Your core responsibilities will include:...  ...decarbonise existing operations and meet net-zero agendas. Coordinating...  ...that attracts, supports, and develops world-class talent is a crucial... 
    .Net
    Long-term contract
    Permanent
    Full-time
    On-site
    Immediate start

    Stantec

    Newcastle upon Tyne
    26 days ago
  • £44k - £58k per annumEstimated
     ...partnered with educators and institutions to develop learning integrity solutions that recognize...  ...provide choice, flexibility, and a safety net for life’s challenges. You’ll also enjoy a...  ...Integrity is the heartbeat of Turnitin—it is the core of our products, the way we treat each... 
    .Net
    Long-term contract
    Full-time
    Remote

    Turnitin, LLC

    Newcastle upon Tyne
    8 days ago
  • £39.96k - £48.12k per annum

     ...community health services from our leading facilities, including the Queen...  ...we do - they are the core of who we are. Our five values...  ...patient choice is encouraged and developed to its maximum potential, with...  ...Laura Collins, ****@*****.***.net, (***) ***-**** Gateshead Health... 
    .Net
    Permanent
    Full-time
    Part-time
    Visa sponsorship
    Skilled worker visa

    Gateshead Health NHS Foundation Trust

    Gateshead, Tyne and Wear
    7 days ago
  • £60k per annum

     ..., hybrid working Reporting to: Engineering Lead Salary: Up to £60k DOE SaleCycle is redefining...  ...end to end across our React front end and our C#/.NET and Go backend services, with real opportunity to grow into our other core languages over time. We’re flexible on the... 
    .Net
    Full-time
    Hybrid working
    Flexible hours

    SaleCycle

    Gateshead, Tyne and Wear
    12 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Lead C# Developer .Net Core - Fintech. Be the first to apply!